Correlation between Si-related and erbium photoluminescence bands and determination of erbium effective excitation cross section in SiO2 films

2005 ◽  
Vol 98 (1) ◽  
pp. 013544 ◽  
Author(s):  
C.-C. Kao ◽  
C. Barthou ◽  
B. Gallas ◽  
S. Fisson ◽  
G. Vuye ◽  
...  
Keyword(s):  
Cross Section ◽  
Excitation Cross Section ◽  
Sio2 Films ◽  
Effective Excitation

Effective excitation cross section of erbium in amorphous hydrogenated silicon under optical pumping

2001 ◽  
Vol 43 (4) ◽  
pp. 625-628 ◽  
Author(s):  
M. S. Bresler ◽  
O. B. Gusev ◽  
P. E. Pak ◽  
E. I. Terukov ◽  
I. N. Yassievich
Keyword(s):  
Cross Section ◽  
Optical Pumping ◽  
Excitation Cross Section ◽  
Hydrogenated Silicon ◽  
Amorphous Hydrogenated Silicon ◽  
Effective Excitation

The dot size effect of amorphous silicon quantum dot on 1.54-μmErluminescence

2004 ◽  
Vol 817 ◽  
Author(s):  
Nae-Man Park ◽  
Tae-Youb Kim ◽  
Gun Yong Sung ◽  
Baek-Hyun Kim ◽  
Seong-Ju Park ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Size Effect ◽  
Amorphous Silicon ◽  
Cross Section ◽  
Excitation Cross Section ◽  
Photoluminescence Intensity ◽  
Silicon Quantum Dot ◽  
Positive Effect ◽  
Effective Excitation

AbstractThe role of the size of amorphous silicon quantum dots in the Er luminescence at 1.54 μm was investigated. As the dot size was increased, the more Er ions were located near one dot due to its large surface area and more Er ions interacted with other ones. This Er-Er interaction caused a weak photoluminescence intensity despite the increase in the effective excitation cross section. The critical dot size, needed to take advantage of the positive effect on Er luminescence, is considered to be about 2.0 nm, below which a small dot is very effective in the efficient luminescence of Er.

Electroluminescent devices based on Er-doped Si nanoclusters

2002 ◽  
Vol 737 ◽  
Author(s):  
F. Priolo ◽  
F. Iacona ◽  
D. Pacifici ◽  
A. Irrera ◽  
M. Miritello ◽  
...  
Keyword(s):  
Cross Section ◽  
Room Temperature ◽  
Optical Pumping ◽  
Excitation Cross Section ◽  
Oxide Semiconductor ◽  
Carrier Injection ◽  
A Value ◽  
Er Doped ◽  
The Impact ◽  
Effective Excitation

ABSTRACTThe electroluminescence (EL) properties of Er-doped Si nanoclusters (nc) embedded in metal-oxide-semiconductor devices are investigated. It is shown that, due to the presence of Si nc dispersed in the SiO2 matrix, an efficient carrier injection occurs and Er is excited producing an intense 1.54 μm room temperature luminescence. The EL properties as a function of the current density, temperature and time have been studied in details, elucidating the radiative and non-radiative de-excitation properties of the system. We have also estimated the excitation cross section for Er under electrical pumping finding a value of −1×10 cm. This value is two orders of magnitude higher than the effective excitation cross section of Er ions through Si nc under optical pumping, and quantum efficiencies of ∼1% are obtained at room temperature in these devices. These data will be presented and the impact on future applications discussed.

Measurement of Excitation Cross-Sections for Electron Impact at low Densities of Target Atoms

1973 ◽  
Vol 28 (11) ◽  
pp. 1871-1872 ◽  
Author(s):  
F. Karstensen ◽  
J. Pohl
Keyword(s):  
Electron Impact ◽  
Cross Section ◽  
Cross Sections ◽  
Atomic Beam ◽  
Excitation Cross Section ◽  
Particle Density ◽  
Measured Cross Section ◽  
Beam Experiment ◽  
Excitation Cross Sections

In a crossed-beam experiment Na atoms are excited by electron impact with an energy of 11 eV. Determination of the excitation cross-section for the D-lines shows an increase of the measured cross-section with decreasing particle density in the atomic beam below 1012 cm-3.

Determination of the excitation cross section of photoluminescence from an Er ion in the case of homogeneous and inhomogeneous optical excitation

2012 ◽  
Vol 46 (11) ◽  
pp. 1372-1375 ◽  
Author(s):  
B. A. Andreev ◽  
Z. F. Krasilnik ◽  
D. I. Kryzhkov ◽  
V. P. Kuznetsov ◽  
A. N. Yablonskiy
Keyword(s):  
Cross Section ◽  
Excitation Cross Section ◽  
Optical Excitation
Sign in / Sign up

Export Citation Format

Share Document